Flexible sealed cell foe secondary batteries



(No Model.)

M. BAILEY 82: J. WARNER.

FLEXIBLE SEALED CELL FOR SECONDARY BATTERIES.

No. 395,028. Patented Dec. 25, 1888.

In E Maw! 18 772%.

N. PETERS. Phutolilhognpher. Wnhingmn, D. C

UNITED STATES PAT NT Ounce.

MARK BAILEY AND JOHN \VARNER, OF LONDOX, ENGLAND.

FLEXIBLE SEALED C ELL FOR SECONDARY BATTERIES.

SPECIFICATION forming part of Letters Patent No. 395,028, dated December 25, 1888.

Application filed August 28, 1888.

To all whom it may concern.-

Be it known that we, l\lARK BAILEY, elec- 1 trician, residing at Holly Lodge, \Vood Green, I

Serial No. 284,029. (No model.)

, tight and resisting the action of acid or other stout cloth.

liquid employed in the cell. The cells shown in Figs. 1 and are of portable type, and are formed of rubber tube or hose coated with A suitable lengthsay eight; to

twelve inchesis cut oil, packing-strips 1 Our invention consists in an improved construction of scaled battery-cells, having elastic or flexible walls, fitted with valves or equivalent device for permitting or preventing the escape of gases arising from or out of the contained elements, and for su iiplying liquids thereto or withdrawing the same therefrom. When fitted with secondary elements, preterably formed from granulated or leat' lead, lead wire woven with. string soaked in shellac or asbestus fiber or equivalent material into a web or mesh, none of the gases evolved during the charging process escape, and consequently no initial energy is lost. The time of charging is thereby lessened and the rate of discharge is well maintained and lengthened. Considerable internal gaseous pressure exists at the time of complete charge, which falls steadily with the discharge. Owing to the flexible nature of the material employed in constructing the walls of the cells, a series of them may be united edgewise in the form of a belt, which may be worn upon the person, and when fitted with either primary or secondary elements is convenient for maintaining an electric lamp, exploding powder, or f r other purposes.

The drawings will make clear the manner in which we carry out our improvements.

Figure 1 is a front elevation of a portable flexible scaled cell. Fig. 2 is a side elevation of the same. Fig. 3 is an. elevation showing construction of cells of large size; Fig. 4,21 series of cells arranged as a belt; Figs. 5, o, and 7, vertical sections showing means employed for separating elements; Fig. 8, enlarged sectional view of valve.

)Ve construct the cell-walls A of rubber insertion-cloth, rubber tube or hose, india-rubber, cloth, or equivalent material coated with rubber, shellac-varnish, or other suitable material for rendering the same gas and water (see Fig. 8,) formed of rubber, gutta-percha, or other suitable elastic material possessing good insulating properties, are inserted at the top end, and'at or about the center (in the case of cells fitted with secondary elements) a piece of cloth, 1?, soaked in varnish or formed from asbestus liber or similar insulating substance, is clamped tor the purpose of separating the elements. The elements R are now placed in position and connected to the terminalsff, which, with the valves 9 g, are placed between the packing-strips B. Metal plates a a are now placed on either side of the tube forming the flexible cell, 'and holes drilled through them, the cell walls and the packing, bolts I) I), having nuts cc, are passed through these holes and the nuts screwed up, so as to form a sound joint. In some cases we employ screwed studs 1) I), (see Fig. 8,) which are tapped into the metal plate on one side. Suitable liquids can be introduced through the valves g y or inserted before sealing up the upper ends. The elements are now charged in the usual, manner.

In constructing cells of large size we employ rubber insertion-cloth, india-rubber, or suitable material treated with shellac or other varnish, as already described. A piece of sufficient size is folded, (see Fig. 3,) fitted with packing-strips l and metal plates (L a upon three sides; or, if more convenient, thewalls A may be clamped together on four sides by means of plates, separating material "1;, as previously described, being clamped between the packi ng-stri ps l5, and terminals and valves 9 g being also mounted therein. Connections are made from the elements to said terminals.

We construct a series of flexible cells, as shown in Fig. it. A piece of rubber heet, rubber insertion-cloth, or cloth coatec with insulating material is folded and masked out for the number of cells required. Spaces 1 are pressed down and firmly cemented with A and eonneetei'l to terminals ff, whieh, with valves 5 are eemie'uted into the upper part, as shown. A strap and huelcle, m, may be mounted, as shown.

liigs. 5, ti, and T are seetional elevations showing eonstruetion emplo \ed in our tlexihle eells for single or douhle l'luid primary or View of valve 1 pael ing-strips ll, stud h, I

and plates (1 (1.

minalsff, eonneeted to said elmiurnts, and 30 valves 1 q, for eontrolling pressure and supplying liquids thereto and emptyil'ig same therefrom, as described.

2. The eomhinnition, with the flexible or elastie sealed eell constructed as deserihed, 35

ot' the strips B, metal plates (I (I, holts Z) Z), and nuts 1; e, or serewed studs for fastening the same together, as set forth.

mg elements R in the form of plates and s 23. The eoml'lination, with a series of flexible sealed lmttery-eells formed of rubber inser- 4o tion-eloth in the shape of a belt, of terminals Havingnow deserihed our invention, we

would wish it undm-stood that we hi5 no claim to any form of plate or element, but elaim l. The etnnhinz'ition, with, a flexible sealed l i1l'l1( \"((?ll having elastie walls l'ormed ot' ruhher insertivm eloth eapahleol resisting internal pressure arising trom and storing the gases eliminatel'l h ehemieal aetion upon contained elements of seeondary type, ol' tereonneeteal to contained elements, valves g and strap and ln'uikle m, as set forth.

-l. The combination, with a flexible sealed hatterv-eell of tubular form, of terminals ff, 45

eonneeted to contained seeondary elements, valves (7 g paekiiig-strips B, plates (1 a, and holts (1 b, sul'istant ially as described.

In testimony whereof we have set our hands in presence of two witnesses.

MARK BAILEY. JOHN \YARNER.

\V it nesses:

E. HUNTER, .l. l-lRIMKELs, (filer/rs (o .llessrs. (1mind" Sons, Noun-[14s, ll;

Lombard St, London. 

